I have MIAB installed on VPS. Everything is setup and working, I can send and receive emails to/from google accounts and other domains, but cannot send emails to Outlook/Microsoft one (I can only receive emails from them)
I have opened all email ports (25,587,465,993, etc)
What is causing this? Maybe anyone has similar case?
Also one more thing, when testing email spam check (https://www.mail-tester.com/) it doesn’t work, just loading